Current Electricity

Physics, HSSC-KPK Second Year. This chapter is split into 32 topics and has 777 practice questions. The topics covered are listed below, followed by 10 free sample questions from the chapter.

Topics in this chapter

1. Conductance, conductivity and temperature coefficient of resistance 29 questions
2. Kirchhoff's laws 28 questions
3. Electric power and energy 27 questions
4. Wheatstone bridge and potentiometer 27 questions
5. Steady current, drift velocity and Ohm's law 30 questions
6. Electromotive force, internal resistance and terminal voltage 28 questions
7. Maximum power transfer and thermocouples 25 questions
8. Variable resistors and thermistor 27 questions
9. Electrical resistance, resistivity and factors affecting resistance 29 questions
10. Steady current and charge flow: calculations 24 questions
11. Free electrons, drift and conduction in solids, liquids and gases 23 questions
12. Ohm's law: voltage, current and resistance calculations 24 questions
13. Ohm's law graphs, ohmic and non-ohmic conductors 21 questions
14. Resistance of wires from resistivity: calculations 20 questions
15. Resistance ratios: stretching, cutting and reshaping wires 24 questions
16. Conductance and conductivity: calculations and concepts 22 questions
17. Temperature coefficient of resistance: calculations 22 questions
18. Rheostat and potential divider: calculations and operation 20 questions
19. Thermistors and resistance thermometers: properties and uses 22 questions
20. E.m.f., internal resistance and terminal voltage: calculations 23 questions
21. E.m.f. and sources of e.m.f.: concepts and energy conversions 20 questions
22. Electric power calculations: P = VI, P = I2R and P = V2/R 30 questions
23. Electrical energy, kilowatt-hours and electricity bills 23 questions
24. Maximum power transfer: calculations and concepts 20 questions
25. Thermocouples and thermoelectric e.m.f.: calculations and concepts 23 questions
26. Kirchhoff's current law: junction problems and concepts 20 questions
27. Kirchhoff's voltage law: loop equations and worked problems 27 questions
28. Series and parallel resistor networks: equivalent resistance and currents 27 questions
29. Wheatstone bridge: balance condition and unknown resistance 23 questions
30. Potentiometer: balance lengths, emf comparison and applications 25 questions
31. Chapter 12 exercise: MCQs, conceptual questions and numerical problems 23 questions
32. EEG, learning outcomes and key points of Chapter 12 21 questions